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Finding the Fourth Proportional to 152,988.98, 229,404.25 and 68,676.53

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Solution

The fourth proportional to 152,988.98, 229,404.25 and 68,676.53 is: 102,979.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,988.98 : 229,404.25 = 68,676.53 : x
  2. Step 2: Convert to fraction form
    152,988.98/229,404.25 = 68,676.53/x
  3. Step 3: Cross multiply
    152,988.98x = 229,404.25 × 68,676.53
  4. Step 4: Simplify right side
    152,988.98x = 15,754,688,731.68
  5. Step 5: Solve for x
    x = 15,754,688,731.68/152,988.98
  6. Step 6: Final answer
    x = 102,979.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.